Hybrid Variables Structural Reliability Model Based on Possibilistic Reliability Theory
نویسندگان
چکیده
In this paper, based on possibilistic reliability theory, the hybrid variables structural reliability model, which includes fuzzy variables and interval variables, is researched. The hybrid variables structural reliability model is established based on possibilistic reliability theory. The analytical algorithms of minimum fuzzy reliability index and maximum failure possibility degree in hybrid variables structural reliability analysis are derived in detail. The constraint conditions of hybrid variables structural reliability model are analyzed. The reliability optimum design method of hybrid variables structure is researched. By evaluation of hybrid variables structural reliability through practical examples, it proved that, in the case of two uncertain variables coexisting, the theory presented in this paper is feasible and effective. And thus, it will have great significance in actual engineering, especially for reliability design of complex structures.
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